The Leuze HT15/4X-M12 (Global Part Number: 50134346) diffuse reflection sensor with background suppression is a premier optical sensing solution from the innovative Series 15 developed by Leuze (Germany) – an internationally recognized pioneer in smart sensor technology and optoelectronic automation systems. This high-performance sensor is specifically engineered to overcome demanding detection challenges across automated production floors, where fluctuating workpiece colors, glossy textures, and moving background machinery frequently trigger false signals in standard diffuse sensors.

The core technical advantage of the Leuze HT15/4X-M12 lies in its state-of-the-art optical triangulation system with advanced background suppression (BGS). Emitting a focused 660 nm visible red LED beam, the sensor maintains dependable, non-contact detection of high-contrast parts, matte black workpieces, multi-colored materials, and shiny packages without being disrupted by nearby background surfaces. Its optical black-white error is strictly contained under 15% across distances up to 350 mm, providing rock-solid operational consistency. The device delivers an extensive operating range from 12 mm to 1000 mm (1 meter), with a smooth multi-turn rotary potentiometer for precise threshold calibration.

Engineered for rugged industrial resilience and high-speed processing, the HT15/4X-M12 is encapsulated in a durable ABS plastic housing with a scratch-resistant PMMA lens cover. Rated to IP67 environmental protection, it functions reliably across a wide ambient temperature range from -40°C to +60°C. With a high switching frequency of 500 Hz (fast 1 ms response time), PNP light-switching transistor output, and comprehensive short-circuit / reverse polarity protection, the sensor integrates seamlessly via its standardized M12 4-pin connector into PLC automation networks, robotic sorting cells, and high-speed conveyor architectures.

• Brand: Leuze (Germany)
• Product Series: Series 15
• Part Number: HT15/4X-M12 (50134346)
• Operating Principle: Diffuse reflection principle with background suppression (BGS)
• Light Source: Visible Red LED
• Wavelength: 660 nm
• LED Risk Group: Exempt group (acc. to IEC 62471)
• Operating Range (White 90%): 0.012 ... 1.0 m (12 ... 1000 mm)
• Operating Range (Gray 18%): 0.012 ... 0.7 m (12 ... 700 mm)
• Operating Range (Black 6%): 0.012 ... 0.5 m (12 ... 500 mm)
• Adjustment Range: 50 ... 1000 mm
• Black-White Error: < 15% (up to 350 mm scanning distance)
• Operating Supply Voltage (UB): 10 ... 30 V DC (incl. residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 20 mA
• Number of Digital Outputs: 1 output
• Switching Element: PNP Transistor
• Switching Principle: Light switching
• Maximum Output Load Current: 100 mA
• Switching Frequency: 500 Hz
• Response Time: 1 ms
• Readiness Delay: 300 ms
• Protective Circuits: Short-circuit protection & Polarity reversal protection
• Sensitivity Adjustment: Multi-turn rotary potentiometer
• Status Display: Yellow LED (switching output status), Green LED (operating voltage ready)
• Electrical Connection: Connector M12, 4-pin, plastic thread
• Housing Construction: Miniature Cubic design
• Housing Dimensions (W x H x L): 15 mm x 42.7 mm x 30 mm
• Housing Material: High-grade ABS Plastic
• Lens Cover Material: Plastic (PMMA)
• Net Weight: 15 g
• Degree of Protection: IP67
• Protection Class: Class III
• Standards & Certifications: cULus, IEC 60947-5-2
• Ambient Operating Temperature: -40 °C to +60 °C
• Storage Temperature: -40 °C to +70 °C